PHP列出MySQL中所有数据库的方法

本文实例讲述了PHP列出MySQL中所有数据库的方法。分享给大家供大家参考。具体如下：

PHP代码如下：

    <?php
    define( 'NL', "\n" );
    define( 'TB', ' ' );
    // connecting to MySQL.
    $conn = @mysql_connect( 'localhost', 'username', 'password' )
        or die( mysql_errno().': '.mysql_error().NL );
    // attempt to get a list of MySQL databases
    // already set up in my account. This is done
    // using the PHP function: mysql_list_dbs()
    $result = mysql_list_dbs( $conn );
    // Output the list
    echo '<ul class="projects">'.NL;
     ///* USING: mysql_fetch_object()
     // ---------------------------
     while( $row = mysql_fetch_object( $result ) ):
      echo TB.'<li>'.$row->Database.'</li>'.NL;
     endwhile;
     //*/
     /* USING: mysql_fetch_row()
     // ------------------------
     while( $row = mysql_fetch_row( $result ) ):
      echo TB.'<li>'.$row[0].'</li>'.NL;
     endwhile;
     //*/
     /* USING: mysql_fetch_assoc()
     // --------------------------
     while( $row = mysql_fetch_assoc( $result ) ):
      echo TB.'<li>'.$row['Database'].'</li>'.NL;
     endwhile;
     //*/
    echo '</ul>'.NL;
    // Free resources / close MySQL Connection
    mysql_free_result( $result );
    mysql_close( $conn );  
    ?>

希望本文所述对大家的php程序设计有所帮助。